Embroidery-frame for embroidery-machines.



H. HARDEGGER.

EMBROIDERY FRAME FOR EMBROIDERY MACHINES.

APPLICATION FILED JAN. 23, 1913.

Patented NO V. 14, 1916.

3 SHEETS-SHEET I.

Inventor:

H. HA'RDEGGER.

EMBROIDERY FRAME FOR EMBROIDERY MACHINESh APPLICATION FILED 1AN.23,1913.

1,204,434. Patented Nov. 14, 1916.

3 SHEETS-SHEET 2.

H` HARDEGGER.

EMBROIDERY FRAME-FOR EMBROIDERY MACHINES.

APPLICATION FILED .IAN.23, |913.

Patented Nov. 14, 1916.

3 SHEETS-SHEET 3.

HANS HARDEGGER, 0F ARBON, SWITZERLAND, ASSIGNOR TO WILHELM STELLMACHER,

0F A RBON, SWITZERLAND. Y

EMBROIDERY-FRAME FOR EMBROIDERY-MACHINES Specification of LettersPatent.

Patented Nev. i4, loic.

Application led January 23, 1913. Serial No; 743,793.

To all whom it may concern Be it known that l, HANS Hnnnneenn, a citizenof Switzerland, residing at Arbon, Switzerland, have invented a newEmbroidery-F rame for Embroidery-Machines, of which the following is aspecification.

My invention relates to improvements in embroidery machines.

In known embroidery machines the frames are rectangular in form and havevarious disadvantages due to the weight of the frame which is too heavyand consequently the machine work is poor. At the slightest increase inthe usual number of movements of the machine, vibrations of the frameoccur by which the goods suffer. Furthermore the frames can only bebuilt of a limited length, for example ten yards, for with a longerconstruction injurious vibrations cannot be avoided.

The object of the present invention is to overcome these disadvantagesand the invention consists in providing as a substitute for therectangular frame, a series of fabric roller supports, which are capableof being moved laterally and longitudinally either at different times orsimultaneously.

In the accompanying drawings-Figure 1 is a front elevation of the lefthand end portion of an embroidery machine embodying my invention. Fig. 2is an elevation of the right hand end portion, and, Fig. 3 is anenlarged detail transverse vertical section of the lower portion of theframe.

The machine frame comprises vertical end members 1 and 2 connectedtogether by horizontal transverse members 3, 1. A plurality ofhorizontal fabric rollers 5, 6, 7, and 8 of well known form are carriedby a series of supporting members 9, 10 and 11, which are movablelongitudinally and transversely of the members 3, 4, on which they aremounted. y

The supporting members are provided with flanges 12 and 13 formed neartheir upper and lower ends 14 and 15, the flanges being engaged byforked members 16 and 17, respectively, which are formed as doublebell-crank levers and are preferably provided with anti-friction rollers18, in their free or forked ends so as to provide a sliding connectionbetween the supporting members and the levers.

The forked members or double bell-crank levers are pivoted in brackets19 mounted on the transverse members 3, 4, and the levers at the upperand lower part of the machine are connected together in series bypull-rods 20, 21, and 23, 24 respectively and both series of levers areconnected together by-a rod 22, which carries a yweight 25, Fig.v 2, tocounterbalance the weight of the fabric rollers.

The supporting members 9, 10 and 11 are connected to tie-rods 26 and 27by means of anti-friction rollers 28V which engage the members andpermit a free movement of the latter transversely of said tie-rods.These tie-rods 26, 27 are connected to oper-- ating rods 29,30respectively by means of two-armed levers 32 pivoted on the end frames 1and 2. The rightehand levers 32 are provided with lever arms 33 whichare connected together by a rod 31.

If the embroidery frame is to be moved upward, it sullices to move theleft supporting member 9 in an upward direction. This upward movement ofsaid member moves, through the medium of the levers 16 and 17, the pullrod 21 toward the left and the pull rod 23, toward the right, said rodscausing a parallel movement of all the levers 16 and 17 and an upwardmovement of supporting members 10 and 11.

1f the supporting member 9 is moved to the right the pull rod 26 willalso move to the right and, through the medium of levers 32, the rod 29will be moved to the left.

The fabric rollers may also be raised and lowered by moving either pullrod longitudinally, which will cause a simultaneous parallel movement ofall the bell crank levers, for `instance if the pull-rod 20 is moved tothe right by a downward movement of the rod 22 all of the free ends ofthe bell-crank levers will move upward yand by means of the flanges 12,13 will cause the roll-supports 9 to 1l to simultaneously move upward.By imparting an upward or downward movement to the rod 31 thedoublearmcd levers 32 are rocked and the tie-rods 26-27, which engagethe supports 911 by the rollers 28 will move said tierodslongitudinallyand impart a simultaneous lateral movement to said supports and move thefabric rolls longitudinally. By moving both mediate uprights supporting`the latter, a

the rods 22 and 31 at the same time, both a lateral and longitudinalmovement vwill be imparted simultaneously to the fabric rolls.

It is immaterial vwhat means are used to aotuate the rods, 22 and 3l.

I claim:

l. In an embroidery machine, a plurality of fabric rolls, independentend uprights supporting said rolls, independent` intermediate uprightssupporting' the latter, and mechanism Connected to each upright to guideand to impart simultaneously to said uprights, simultaneous andindependent longitudinal and transverse movements.V

2. ln an embroidery machine, a plurality of fabric rolls, independentend uprights supporting said rolls, independent intermediatenprightssupporting the latter, a lever for each support relatively movablethereto, means toactu-ate said levers simultaneously to raise and lowerthe supports and means to move the supports laterally.

3. ln an embroidery maehine, a plurality of fabric rolls, independentend upright-s supporting said rolls, independent interplurality ofpivotally connected levers each movably connected to la support, meansto actuate said levers simultaneously to raise or lower the supports,and means to move the latter transversely independently of the actuationof the levers.

4. In an embroidery maehine,a plurality of fabric rolls, independentendV uprights supporting said rolls, independent {intermediate uprightssupporting; the latter, a. plurality of pivotally connected levers eachmovably connected to a. support, means to aotuate said leverssimultaneously to raise or lower the supports, and means to move thelatter transversely, simultaneously with the raising and lowering' ofthe levers.

In an embroidery machine, a plurality of fabric rolls, VindependentLip-rights supporting` the end portions of said rolls, independentuprights supporting the rolls between the end supports, iane'es on thesup ports near both ends thereof, a plurality of pivoted'forlzed membersin movable engagement with the flange of the supports, means tosimultaneously oscillat'e the forked members, andmeans to move thesupports relatively to the forked members.

ln testimony whereof il my signature m presence of two witnesses.

11 f i innwnv ROLLER, Fmnnmei-r LoniNnn;

Copies of this patent mav be obtained for five cents each, by addressingthe Commissioner of Patents,

Y Washington, D. C.

